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The 2X series vacuum pump is of two-stage structure, its operation performance consists of two parts, high-pressure stage and lowpressure stage. Its suction port is connected with the vacuum container or other vacuum equipments to helps intaking or draining the gas inside the container during operation. When the equipment is in vacuum, the high-pressure stage drain valve will be closed, then the gas suctioned by the high-pressure stage will be transferred to the second stage, after that, the gas will be suctioned and drained through the second stage, so that the vacuum equipment can get a certain extent vacuum. The technical parameter of the pump is 6×10-2Pa. According to the user's operation requirements, to equip a vacuum booster pump, and this pump is used as a backing pump. Since the booster pump increased suction force, accompanied with the continuous suction of the backing pump, the equipment will obtain higher vacuum percentage.
Features:
1. Wide range of free-air capacities to match specific applications
2. Positive pressure oil system ensures proper lubrication and prevents oil starvation under high gas loads
3. Fast acting inlet valve protects internal components against oil and air contamination if the pump stops while under vacuum
4. Gas ballast valve limits internal condensation; Lets you use pump when condensable vapors are present
Features:
|
Model
|
2X-2
|
2X-4A
|
2X-8A
|
2X-8
|
2X-15A
|
2X-15
|
2X-30
|
2X-70
|
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|
Item/Pumping Speed(L/S)
|
2
|
4
|
8
|
15
|
30
|
70
|
||||
|
Ultimate
Pressure |
Gas ballast
closed |
Pa
(Torr) |
6×10-2(≤5×10-4)
|
|||||||
|
Gas ballast
open |
6×10-1(≤5×10-3)
|
|||||||||
|
Motor Power(KW)
|
0.37
|
0.55
|
1.1
|
1.5
|
3
|
5.5
|
||||
|
Temperature Rise(℃ )
|
≤40
|
|||||||||
|
Inlet Diameter(mm)
|
∮18
|
∮25
|
∮32
|
∮40
|
∮60
|
∮80
|
||||
|
Rotational Speed (r/min)
|
450
|
590
|
520
|
450
|
420
|
|||||
|
Injection Amount of Oil (L)
|
0.7
|
1.0
|
2.0
|
2.8
|
3.0
|
4.2
|
||||
|
LW Noise dB(A)
|
68
|
≤68
|
≤70
|
≤75
|
≤78(~70)
|
≤80(~75)
|
||||
|
Size(cm)
|
56×31×39
|
56×34×37
|
79×43×54
|
79×53×54
|
78×50×56
|
71×65×70
|
||||
|
Type of applicable
electromagnetic valve |
DDC-JQ25
|
DDC-JQ40
|
DDC-JQ65
|
DDC-JQ80
|
||||||
|
Weight(kg)
|
58
|
55
|
80
|
110
|
232
|
330
|
||||
|
Mode of cooling
|
Natural cooling
|
Water
cooling |
Natural
cooling |
Water cooling
|
||||||
|
Cooling water amount (L/min)
|
-
|
>0.5
|
-
|
>0.8
|
>1
|
>2
|
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1. Entry-mouth
2. Seal rubber circle
3. Percolation net
4. V belt rotary table
5. Front end-plates
6. High-pressure rotary vane
7. High-pressure rotor
8. Axis
9. Front axis
10. The oil sealed chamber
11. Spring
12. Onentation lock
13. Exhaust cover
14. Exhaust cushion
15. Block-oil-net
16. Pump body
17. Septi-board
18.Back end-plates
19. Low-pressure rotor
20. Water tie-in
21. Feather key
22. Low rotary vane
23. Water cover
24. Exhaust valve
25. Observation mirror
26. Aeration-valve
27. Oil-escape-plug
